80381920

素因数分解:

$2^5\times 5^1\times {\mathrm{53}}^1\times {\mathrm{9479}}^1$

素因数の和:9547

約数の個数: 48

約数和(自身を含む): 193505760

約数和(自身を除く): 113123840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 80, 106, 160, 212, 265, 424, 530, 848, 1060, 1696, 2120, 4240, 8480, 9479, 18958, 37916, 47395, 75832, 94790, 151664, 189580, 303328, 379160, 502387, 758320, 1004774, 1516640, 2009548, 2511935, 4019096, 5023870, 8038192, 10047740, 16076384, 20095480, 40190960, 80381920]

約数ペア:

[(1, 80381920), (2, 40190960), (4, 20095480), (5, 16076384), (8, 10047740), (10, 8038192), (16, 5023870), (20, 4019096), (32, 2511935), (40, 2009548), (53, 1516640), (80, 1004774), (106, 758320), (160, 502387), (212, 379160), (265, 303328), (424, 189580), (530, 151664), (848, 94790), (1060, 75832), (1696, 47395), (2120, 37916), (4240, 18958), (8480, 9479)]